An EMD GP15T is a 4-axle diesel locomotive

Diesel locomotive

A diesel locomotive is a type of railroad locomotive in which the prime mover is a diesel engine, a reciprocating engine operating on the Diesel cycle as invented by Dr. Rudolf Diesel...

 built by General Motors Electro-Motive Division between October 1982 and April 1983. It was a very close cousin to the GP15-1

EMD GP15-1

The EMD GP15-1 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division between June, 1976 and March, 1982. Intended to provide an alternative to the rebuilding programs that many railroads were applying to their early road switchers, it is generally employed as a yard switcher...

, but used a turbocharger in order to generate more power from a smaller engine. Power was provided by an 8-cylinder

Cylinder (engine)

A cylinder is the central working part of a reciprocating engine or pump, the space in which a piston travels. Multiple cylinders are commonly arranged side by side in a bank, or engine block, which is typically cast from aluminum or cast iron before receiving precision machine work...

 diesel engine that generated 1,500 hp

Horsepower

Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...

 (1.1 MW), the same as the GP15-1, but with four fewer cylinders.

28 examples of this locomotive model were built for American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 railroads (Chessie System

Chessie System

Chessie System, Inc. was a holding company that owned the Chesapeake and Ohio Railway , the Baltimore and Ohio Railroad , the Western Maryland Railway , and several smaller carriers. It was incorporated in Virginia on February 26, 1973, and it acquired the C&O on June 15...

 getting the majority of them as C&O 1500-1524 (25 units)) and three units to the Apalachicola Northern in Florida.

Chessie Systems GP15Ts are equipped with dynamic braking

Regenerative brake

A regenerative brake is an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into another form, which can be either used immediately or stored until needed...

 and the optional inertial air filtration system, whereas ANs GP15Ts do not have dynamic braking

Regenerative brake

A regenerative brake is an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into another form, which can be either used immediately or stored until needed...

, and also utilize the standard non-inertial intake system.

External links

• Sarberenyi, Robert. EMD GP15-1, GP15AC, and GP15T Original Owners